GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.1 |
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lround(3) |
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lround, lroundf, lroundl, llround, llroundf, llroundl − round to nearest integer, away from zero
#include <math.h>
long int
lround(double x);
long int lroundf(float x);
long int lroundl(long double x);
long long
int llround(double x);
long long int llroundf(float x);
long long int llroundl(long double x);
Compile with −std=c99; link with −lm.
These functions round their argument to the nearest integer value, rounding away from zero, regardless of the current rounding direction. If x is infinite or NaN, or if the rounded value is outside the range of the return type, the numeric result is unspecified. A domain error may occur if the magnitude of x is too large.
The rounded integer value. Note that unlike round(3), ceil(3), etc., the return type of these functions differs from that of their arguments.
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EDOM |
The magnitude of x is too large and (math_errhandling & MATH_ERRNO) is non-zero. |
C99.
ceil(3), floor(3), lrint(3), nearbyint(3), rint(3), round(3)
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lround(3) | |